Antimicrobial Stewardship Moves Into Companion Animal Care

Antimicrobial medicines underpin much of modern veterinary practice. They treat bacterial infections, protect surgical patients from complications, and help shelters manage outbreaks that can spread quickly through groups of animals housed in close proximity. Their availability is rarely the issue. Their long-term effectiveness is.

Antimicrobial resistance is increasingly framed as a One Health problem, one that connects human medicine, animal health and the environment. Companion animal practice sits squarely inside that framing. Dogs, cats and other pets live in close contact with people, are treated by many of the same drug classes, and are cared for in settings, from busy first-opinion clinics to open-admission shelters, where prescribing decisions are made under time pressure and diagnostic uncertainty.

The result is a shift in how responsible prescribing is understood. Antimicrobial stewardship, once discussed mainly in agricultural and human hospital settings, is becoming a core competency in companion animal care rather than a niche clinical interest. The Global Animal Care Awards 2026 provide a useful framework for examining this area, because the category recognises practical work that improves animal welfare through cross-sector approaches, and stewardship depends on exactly that kind of collaboration.

What Stewardship Means Beyond Reduction

Stewardship is sometimes summarised as using fewer antimicrobials. That shorthand is misleading. The principle is appropriate use: the right drug, at the right dose, for the right duration, by the right route, and only when a bacterial infection is genuinely likely or confirmed.

In practice this cuts in two directions. It means avoiding antibiotics for conditions that will resolve without them, such as many uncomplicated viral respiratory infections or minor superficial wounds. It also means treating promptly and adequately when an infection is present, because an untreated or under-treated bacterial infection is a welfare problem in its own right and can drive resistance through repeated, incomplete courses.

A stewardship-minded practice therefore asks a series of practical questions: is a bacterial cause plausible, is a diagnostic test worth the cost and delay, would a narrow-spectrum option work, and is the prescribed course one the owner can realistically complete? A blanket target for prescription volume does not capture any of that.

The Pressures That Shape a Prescribing Decision

First-opinion practice and shelter medicine face different constraints, and both shape what stewardship can realistically look like.

In a general practice, the consultation is short, the owner may be anxious, and the animal may be uncomfortable. Diagnostics such as cytology or culture take time and add cost, and the client may be reluctant to pay for them. Prescribing empirically is often a reasonable clinical judgement, but it is a judgement made under uncertainty, and the temptation to dispense something immediately is strong when an owner expects a visible intervention.

Shelters operate under a different set of pressures. Animals arrive with unknown histories, vaccination status is often unclear, and stress levels are high. Capacity limits may make isolation space scarce, and the cost of individual diagnostic workups is difficult to justify across a large population. An outbreak of respiratory or gastrointestinal disease can move through a kennel block quickly, and the decision to treat a group rather than an individual may be clinically sound even when it complicates stewardship goals.

Recognising these differences matters. A protocol designed for a well-resourced referral hospital will not translate directly to a small charity clinic or a municipal pound, and stewardship guidance that ignores cost and capacity is unlikely to be followed.

Prevention as the First Form of Stewardship

The most effective way to reduce the need for antimicrobials is to reduce the need for treatment. Infection prevention is therefore central rather than peripheral to stewardship work.

• Vaccination against common viral and bacterial pathogens lowers the incidence of disease that might otherwise prompt empirical antibiotic use.
• Hygiene and biosecurity, including appropriate cleaning products, hand hygiene and separation of infected animals, limit transmission within clinics and shelters.
• Housing and husbandry that reduce stress support immune function and lower susceptibility to disease.
• Routine dental care, parasite control and nutrition contribute to overall health and reduce the conditions that most often lead to repeated prescriptions.

In shelter settings, intake protocols, ventilation, cohorting and careful population management can do more to reduce antimicrobial use than any prescribing rule. In general practice, nurse-led clinics, weight management and dental care programmes play a similar role.

Protocols, Training and Conversations With Owners

Stewardship guidance only changes behaviour when it is embedded in the working day. That means written practice protocols, a defined formulary, clear guidance on when to culture and when empirical treatment is acceptable, and a system for reviewing prescribing patterns over time.

Training matters as much as documentation. Veterinary surgeons, nurses and reception teams all influence whether a course is started, completed or avoided. Nurses in particular often carry the follow-up conversations that determine whether an owner finishes a course or stops early once the animal appears better.

Communication is where stewardship is most often won or lost. An owner who leaves a consultation without antibiotics may feel that nothing has been done. Explaining the reasoning, describing the expected course of the illness, outlining warning signs that should prompt a return visit, and offering practical supportive measures can make the difference between a decision that is accepted and one that is disputed.

Written client information, consistent messaging across the team, and a clear practice position on when antibiotics are not indicated all help. So does acknowledging that the conversation is genuinely difficult rather than treating owner expectation as a failure of understanding.

One Health Coordination and the Case for Recognition

Companion animal stewardship is strengthened by coordination with human health and environmental sectors. International bodies have described antimicrobial resistance as a shared challenge requiring action across human medicine, animal health, food production and the environment, and the same principles apply at practice level.

Shared surveillance, consistent guidance on critically important antimicrobials, and joint professional education all reinforce the case that veterinary prescribing is part of a wider public health effort rather than an isolated clinical preference. For companion animal practice, that framing helps explain why a decision made in a consulting room matters beyond the individual patient.

The Global Animal Care Awards 2026 offer a way to examine this work in practical terms. The category recognises efforts that improve animal welfare through cross-sector approaches, and stewardship fits that description closely: it combines clinical judgement, infection prevention, client communication and collaboration with sectors beyond veterinary practice. Recognising practical stewardship work, from shelter protocols to practice-level training programmes, helps demonstrate that appropriate antimicrobial use is achievable within real resource constraints rather than an ideal reserved for specialist settings.

Antimicrobial stewardship in companion animal care is not a single intervention. It is a set of habits, protocols and conversations that accumulate across a practice or a shelter over time. Its value lies in protecting the medicines that veterinary teams rely on, while ensuring that animals receive the treatment they actually need.